src/third_party/WebKit/Source/bindings/core/v8/PostMessage.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef PostMessage_h
   6 #define PostMessage_h
   7
   8 #include "bindings/core/v8/ExceptionState.h"
   9 #include "bindings/core/v8/SerializedScriptValue.h"
  10 #include "bindings/core/v8/V8Binding.h"
  11 #include "bindings/core/v8/V8BindingMacros.h"
  12 #include "core/dom/MessagePort.h"
  13 #include "wtf/ArrayBuffer.h"
  14 #include <v8.h>
  15
  16 namespace blink {
  17
  18 class ExecutionContext;
  19
  20 // FIXME: This should be auto-generated by a code generator template.
  21 template <class Type>
  22 void postMessageMethodCommon(const char* interfaceName, Type* instance, const v8::FunctionCallbackInfo<v8::Value>& info)
  23 {
  24     ExceptionState exceptionState(ExceptionState::ExecutionContext, "postMessage", interfaceName, info.Holder(), info.GetIsolate());
  25     MessagePortArray ports;
  26     ArrayBufferArray arrayBuffers;
  27     if (info.Length() > 1) {
  28         const int transferablesArgIndex = 1;
  29         if (!SerializedScriptValue::extractTransferables(info[transferablesArgIndex], transferablesArgIndex, ports, arrayBuffers, exceptionState, info.GetIsolate())) {
  30             exceptionState.throwIfNeeded();
  31             return;
  32         }
  33     }
  34     RefPtr<SerializedScriptValue> message = SerializedScriptValue::create(info[0], &ports, &arrayBuffers, exceptionState, info.GetIsolate());
  35     if (exceptionState.throwIfNeeded())
  36         return;
  37     // FIXME: Only pass context/exceptionState if instance really requires it.
  38     ExecutionContext* context = currentExecutionContext(info.GetIsolate());
  39     instance->postMessage(context, message.release(), &ports, exceptionState);
  40     exceptionState.throwIfNeeded();
  41 }
  42
  43 } // namespace blink
  44
  45 #endif // PostMessage_h